Skies of Arcadia for the Gamecube, a fun little pirate JRPG for sure.
Also, keep in mind this is a guilty pleasure, Halo: Combat Evolved for the PC. For some reason I can never get tired of playing the same games on multiplayer on the same maps on my laptop. I even prefer it to the modern iterations, strangely. However much people may complain about how this game started a trend that ruined the modern FPS, it manages to not only avoid most of the problem it was blamed for, but provide refreshing gameplay that feels way more satisfying and fulfilling than a match in the new CoD games.